There are several types of uveitis that are classified by where inflammation occurs in the uvea.
When inflammation of the uvea is confined to the iris, it is called Iritis. Inflammation of the iris may start suddenly, or develop over several months, and if the inflammation affects the iris and the ciliary body, it is called anterior uveitis or iridocyclitis. Inflammation of the posterior parts of the eye is called posterior uveitis or chorioretinitis, and its progress can be slower than other types.
In some cases, interstitial parts may also be involved, which are called interstitial uveitis.
If the progression of uveitis is slow, the eye may appear to be quite normal, and only with an accurate eye examination, inflammation in the eye can be determined.